A Researcher Wishes to Determine Whether There Is a Difference

Essay

A researcher wishes to determine whether there is a difference in the average age of middle school, highschool, and college teachers. Teachers are randomly selected. Their ages are recorded below. Test thehypothesis that there is no difference in the average age of each group. Use α = 0.01. $$\begin{array} { c c c } \hline \text { Middle School Teachers } & \text { High School Teachers } & \text { College Teachers } \\\hline 23 & 41 & 39 \\28 & 38 & 45 \\27 & 36 & 45 \\52 & 47 & 61 \\25 & 42 & 36 \\37 & 31 & 35 \\\hline\end{array}$$